Rail laying device for recovering historical features on municipal road
By designing a rail laying device combining concrete base, stirrups and asphalt concrete layers on municipal roads, the problem of difficult connection between railway tracks and municipal roads in urban areas is solved, and coordinated laying of railway tracks and urban roads is achieved and high durability pavement is achieved.
Patent Information
- Application Number
- CN202421733822.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing railway track laying technology is difficult to connect with municipal roads in urban areas. When laying traditional railway tracks, it is necessary to lay flat slopes or very small longitudinal slopes, making it difficult for the railway tracks to integrate with urban roads and plots.
A device for the laying of rail tracks on municipal roads is designed, using a concrete base combined with stirrups, set inside the road, and coordinated with the asphalt pavement of urban roads through steel-plastic geogrids and asphalt concrete layers. A sloped thick steel plate oblique brace is installed on the sides of the rail to improve durability.
The coordinated laying of railway tracks and urban roads has been achieved, the construction process has been simplified, the road surface durability has been improved, and the railway tracks and road surface structures have been integrated, which is suitable for the restoration of historical appearance.
Smart Images
Figure CN223033777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road paving, in particular to a device for laying rails for historical appearance restoration on municipal roads. Background Art
[0002] With the economic development of the country in recent years, the intensification of regional development, and the adjustment of industrial structure, the original railways, port terminal tracks, etc. have gradually been relocated. In order to maintain the cultural belonging of the region, local governments often add the original cultural elements of the area during regional development. The retention of railway transport tracks in areas such as port terminals and freight yards greatly enhances the cultural attributes of the region. However, traditional rail laying requires a concrete road surface as a carrier, which is incompatible with the asphalt road surface of urban roads. Moreover, when laying traditional rails to meet the requirements of train transportation, a flat slope or a very small longitudinal slope is often used, which also makes it difficult for the rails to integrate with urban roads and plots.
[0003] In view of the fact that the existing rail laying technology is only limited to meeting the use of railway transportation and does not consider how to connect the rails retained as cultural attributes in the urban area with municipal roads. When laying traditional rails to meet the requirements of train transportation, a flat slope or a very small longitudinal slope is often used, which also makes it difficult for the rails to integrate with urban roads and plots. Therefore, a device for laying rails for historical appearance restoration on municipal roads that is coordinated with the asphalt road surface of urban roads and convenient for construction is provided to solve the above problems. Content of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the existing technology, the utility model provides a device for laying rails for historical appearance restoration on municipal roads, which has the advantages of being coordinated with the asphalt road surface of urban roads and convenient for construction, and solves the problems that the existing rail laying technology is only limited to meeting the use of railway transportation, does not consider how to connect the rails retained as cultural attributes in the urban area with municipal roads, and when laying traditional rails to meet the requirements of train transportation, a flat slope or a very small longitudinal slope is often used, which also makes it difficult for the rails to integrate with urban roads and plots.
[0006] (II) Technical Solutions
[0007] To achieve the above-mentioned purpose of coordinating with the urban road asphalt pavement and facilitating construction, the present utility model provides the following technical solutions: A device for laying rails for historical appearance restoration on a municipal road, including a concrete base provided inside the road, and stirrups provided inside the concrete base; on both sides of the concrete base, lime-fly ash gravel is provided, and there are two layers of lime-fly ash gravel; on the upper side of the lime-fly ash gravel, coarse-grained asphalt concrete is provided, and on the upper side of the coarse-grained asphalt concrete, fine-grained asphalt concrete is provided; inside the coarse-grained asphalt concrete and the fine-grained asphalt concrete, there is a channel, and the inner wall of the channel is provided with thick steel plates, and the thick steel plates are arranged outside the concrete base; between the lime-fly ash gravel, there is a steel-plastic geogrid, and between the lime-fly ash gravel and the coarse-grained asphalt concrete, there is a prime coat of asphalt oil, and between the fine-grained asphalt concrete and the coarse-grained asphalt concrete, there is a tack coat of asphalt oil. The concrete base is in a "convex" shape, which divides the lime-fly ash gravel into two layers, and the two layers are separated by a steel-plastic geogrid. The middle of the steel-plastic geogrid and the concrete base is on the same horizontal plane. The stability between the lime-fly ash gravel and the concrete base can be increased through the steel-plastic geogrid. The lower end of the rail penetrates inside the concrete base, is located above the stirrup, and its upper end is arranged in the channel opened by the thick steel plate. The fine-grained asphalt concrete is coordinated with the urban road asphalt pavement and can be used for historical appearance restoration.
[0008] Preferably, the thick steel plate and the corner are provided with inclined thick steel plates, and the inclined thick steel plates are arranged inside the coarse-grained asphalt concrete. The inclined thick steel plates are provided on the side of the rail for bracing, which not only retains the appearance of the railway track, but also solves the problem of easy damage at the end of the asphalt, and improves the durability of the road surface.
[0009] Preferably, the thickness of the thick steel plate is 2CM, and the thickness of the inclined thick steel plate is 1CM.
[0010] Preferably, anchor bolts penetrate through the upper end of the concrete base, and the anchor bolts penetrate through the concrete base and the stirrups in sequence; the anchor bolts penetrate through the thick steel plates, and the anchor bolts are arranged below the inclined thick steel plates. The anchor bolts and the steel bars are respectively welded and positioned for the stirrups, which can increase the overall stability of the concrete base. The anchor bolts penetrate into the concrete base not less than 10CM, and the diameters of the steel bars and the anchor bolts are both 0.8CM.
[0011] Preferably, steel plate openings are opened inside the thick steel plates, and the anchor bolts are arranged inside the thick steel plates.
[0012] Preferably, steel bars are fixedly installed at the corners of the inner wall of the stirrup, and there are four steel bars located at the four corners of the stirrup respectively.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a device for laying tracks for restoring historical features on municipal roads, which has the following beneficial effects: The device for laying tracks for restoring historical features on municipal roads cancels the concrete pavements on both sides of the track during conventional track laying, and is coordinated with the asphalt pavement of the urban road; The lower foundation adopts a concrete foundation, which is convenient for construction and can better meet the requirements of road surface load; A steel bar framework is arranged in the concrete foundation and connected with the track. The elevation and slope of the track are adjustable and can be better matched with the road slope; An inclined thick steel plate brace is arranged on the side of the track, which not only retains the appearance of the railway track, but also solves the problem of easy damage at the end of the asphalt, improving the durability of the road surface; The device is buried under the road surface layer, integrating the track laying with the road surface structure. The device can be implemented synchronously with the laying of the road surface structure, and the construction period is short. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic cross-section view of the track restoration of the utility model;
[0016] Figure 2 It is a detailed elevation view of the steel plate of the utility model;
[0017] Figure 3 It is a detailed plan cross-section view of the steel plate of the utility model.
[0018] In the figure: 1. Lime-fly ash gravel; 2. Concrete pedestal; 3. Stirrup; 4. Coarse-grained asphalt concrete; 5. Fine-grained asphalt concrete; 7. First anchor bolt; 8. Second anchor bolt; 9. Inclined thick steel plate; 10. Thick steel plate; 11. Steel-plastic geogrid; 14. Steel plate opening. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Embodiment: Please refer to Figures 1 - 3, A device for laying rails for historical appearance restoration on municipal roads, including a concrete base 2 arranged inside the road and stirrups 3 arranged inside the concrete base 2; on both sides of the concrete base 2, there are two layers of lime-fly ash gravel 1 respectively; on the upper side of the lime-fly ash gravel 1, there is coarse-grained asphalt concrete 4, and on the upper side of the coarse-grained asphalt concrete 4, there is fine-grained asphalt concrete 5; inside the coarse-grained asphalt concrete 4 and the fine-grained asphalt concrete 5, there is a channel, and the inner wall of the channel is provided with thick steel plates 10, and the thick steel plates 10 are arranged outside the concrete base 2; between the lime-fly ash gravel 1, there is a steel-plastic geogrid 11, and between the lime-fly ash gravel 1 and the coarse-grained asphalt concrete 4, there is prime coat asphalt oil, and between the fine-grained asphalt concrete 5 and the coarse-grained asphalt concrete 4, there is tack coat asphalt oil.
[0021] Among them, the concrete base 2 is in a "convex" shape, which divides the lime-fly ash gravel 1 into two layers, and the two layers are separated by the steel-plastic geogrid 11. The middle of the steel-plastic geogrid 11 and the concrete base 2 is on the same horizontal plane. The stability between the lime-fly ash gravel 1 and the concrete base 2 can be increased through the steel-plastic geogrid 11. The lower end of the rail penetrates inside the concrete base 2, which is located above the stirrups 3, and its upper end is arranged in the channel opened by the thick steel plate 10. The fine-grained asphalt concrete 5 is coordinated with the urban road asphalt pavement and can be used for historical appearance restoration.
[0022] At the corner of the thick steel plate 10, there is an inclined thick steel plate 9, and the inclined thick steel plate 9 is arranged inside the coarse-grained asphalt concrete 4. The thickness of the thick steel plate 10 is 2CM, and the thickness of the inclined thick steel plate 9 is 1CM.
[0023] Among them, the side of the rail is provided with an inclined thick steel plate 9 for bracing, which not only retains the appearance of the railway track but also solves the problem of easy damage at the end of the asphalt and improves the durability of the road surface.
[0024] An anchor bolt 8 penetrates through the upper end of the concrete base 2, and the anchor bolt 8 sequentially penetrates through the concrete base 2 and the stirrups 3; the anchor bolt 8 penetrates through the thick steel plate 10, and the anchor bolt 8 is arranged below the inclined thick steel plate 9. Inside the thick steel plate 10, there is a steel plate opening 14, and the anchor bolt 8 is arranged inside the thick steel plate 10. At the corners of the inner wall of the stirrups 3, four steel bars 7 are fixedly installed, and the four steel bars 7 are respectively located at the four corners of the stirrups 3.
[0025] Among them, the anchor bolt 8 and the steel bar 7 respectively perform welding positioning on the stirrups 3, which can increase the overall stability of the concrete base 2. The anchor bolt 8 penetrates into the concrete base 2 not less than 10CM, and the diameters of both the steel bar 7 and the anchor bolt 8 are 0.8CM.
[0026] Working principle: A combined system of steel bar skeletons, steel plates, and concrete rails is adopted. Its lower foundation is concrete, and the upper part is covered with a semi-rigid pavement structure base course. Stirrups 3 are arranged inside the concrete pedestal 2 and connected to the rails. The side of the rails is separated from the asphalt surface layer by a diagonal thick steel plate 9 brace; first, a layer of lower foundation is poured along with the laying of the subgrade under the road, and a steel bar skeleton is pre-buried; after the curing is completed, the second layer of concrete is poured along with the upper subgrade of the road, and anchor bolts 8 and rails are buried, and then the diagonal thick steel plate 9 brace is installed; finally, after the road surface layer construction is completed, the third layer of concrete is poured to enhance the strength of the components. The concrete pedestal 2 is in a "convex" shape, which divides the lime-fly ash gravel 1 into two layers, and the two layers are separated by a steel-plastic geogrid 11. The middle of the steel-plastic geogrid 11 and the concrete pedestal 2 is on the same horizontal plane. The stability between the lime-fly ash gravel 1 and the concrete pedestal 2 can be increased through the steel-plastic geogrid 11. The lower end of the rail penetrates inside the concrete pedestal 2, is located above the stirrup 3, and its upper end is arranged in the channel opened by the thick steel plate 10. A diagonal thick steel plate 9 brace is arranged on the side of the rail, which not only retains the appearance of the railway track but also solves the problem of easy damage at the end of the asphalt, improves the durability of the road surface. The anchor bolts 8 and the steel bars 7 are respectively welded and positioned on the stirrup 3, which can increase the overall stability of the concrete pedestal 2. The fine-grained asphalt concrete 5 is coordinated with the urban road asphalt pavement and can be used for the restoration of historical features.
[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for laying rails on municipal roads for historical restoration, characterized in that: It comprises a concrete base (2) arranged inside the road, and stirrups (3) arranged inside the concrete base (2); Both sides of the concrete base (2) are provided with fly ash crushed stone (1), and the fly ash crushed stone (1) is provided with two layers; The fly ash crushed stone (1) is provided with coarse-grained asphalt concrete (4) on the upper side, and fine-grained asphalt concrete (5) is provided on the upper side of the coarse-grained asphalt concrete (4); The coarse-grained asphalt concrete (4) and the fine-grained asphalt concrete (5) are provided with channels inside, and the inner walls of the channels are provided with thick steel plates (10), and the thick steel plates (10) are arranged on the outside of the concrete base (2); A steel-plastic geogrid (11) is provided between the fly ash crushed stone (1), a permeable layer of asphalt oil is provided between the fly ash crushed stone (1) and the coarse-grained asphalt concrete (4), and a bonding layer of asphalt oil is provided between the fine-grained asphalt concrete (5) and the coarse-grained asphalt concrete (4).
2. The device for laying rails for historical restoration on municipal roads according to claim 1, characterized in that: An inclined thick steel plate (9) is provided at the corner between the thick steel plate (10), and the inclined thick steel plate (9) is arranged inside the coarse-grained asphalt concrete (5).
3. The device for laying rails for historical restoration on municipal roads according to claim 2, characterized in that: The thickness of the thick steel plate (10) is 2CM, and the thickness of the inclined thick steel plate (9) is 1CM.
4. The device for laying rails for historical restoration on municipal roads according to claim 3, characterized in that: An anchor bolt (8) penetrates the upper end of the concrete base (2), and the anchor bolt (8) penetrates the concrete base (2) and the stirrup (3) in sequence; The anchor bolt (8) penetrates the thick steel plate (10), and the anchor bolt (8) is arranged on the lower side of the inclined thick steel plate (9).
5. The device for laying rails for historical restoration on municipal roads according to claim 4, characterized in that: A steel plate opening (14) is provided inside the thick steel plate (10), and an anchor bolt (8) is arranged inside the thick steel plate (10).
6. The device for laying rails for historical restoration on municipal roads according to claim 1, characterized in that: A steel bar (7) is fixedly mounted at the corner of the inner wall of the stirrup (3), and four steel bars (7) are respectively located at the four corners of the stirrup (3).